Fixed os.path.exists call
Fixed os.path.exists call

Leoniela/nipype,JohnGriffiths/nipype,carlohamalainen/nipype,gerddie/nipype,rameshvs/nipype,Leoniela/nipype,iglpdc/nipype,glatard/nipype,pearsonlab/nipype,dmordom/nipype,rameshvs/nipype,grlee77/nipype,carlohamalainen/nipype,gerddie/nipype,arokem/nipype,FredLoney/nipype,fprados/nipype,FredLoney/nipype,wanderine/nipype,mick-d/nipype_source,FredLoney/nipype,grlee77/nipype,sgiavasis/nipype,iglpdc/nipype,mick-d/nipype_source,mick-d/nipype,gerddie/nipype,JohnGriffiths/nipype,JohnGriffiths/nipype,blakedewey/nipype,carlohamalainen/nipype,blakedewey/nipype,wanderine/nipype,glatard/nipype,grlee77/nipype,arokem/nipype,pearsonlab/nipype,pearsonlab/nipype,fprados/nipype,FCP-INDI/nipype,arokem/nipype,carolFrohlich/nipype,wanderine/nipype,iglpdc/nipype,mick-d/nipype,mick-d/nipype,blakedewey/nipype,rameshvs/nipype,glatard/nipype,FCP-INDI/nipype,grlee77/nipype,sgiavasis/nipype,carolFrohlich/nipype,pearsonlab/nipype,Leoniela/nipype,dgellis90/nipype,mick-d/nipype,dgellis90/nipype,blakedewey/nipype,dmordom/nipype,mick-d/nipype_source,glatard/nipype,sgiavasis/nipype,FCP-INDI/nipype,arokem/nipype,carolFrohlich/nipype,fprados/nipype,sgiavasis/nipype,carolFrohlich/nipype,dmordom/nipype,gerddie/nipype,rameshvs/nipype,JohnGriffiths/nipype,iglpdc/nipype,FCP-INDI/nipype,dgellis90/nipype,dgellis90/nipype,wanderine/nipype